White Rage would be an enormous pain in the ass, they don't really have Susanoo to turtle like Itachi did. The best bet here would be to grab Naruto and teleport away if he scattered kunais around, or perhaps they can use precog but I doubt that they'll be able to pull a Sakura and punch Kabuto when he approach for the kill.
The problem will then be putting down Kabuto, who has Karin's regeneration, his own potent medicine, Orochimaru's vomit healing and stuff to heal himself. I don't know where they are fighting (although certainly not in the cave with the frogs, lol), so Muki Tensei might not be that useful for offense, he could shift the battlefield into his favor though, and screw up Minato's kunais location.
Strength wise, we don't saw much from Kabuto, even if he can rip apart Itachi's arm with his jaw (and Edo Tensei selves aren't weaker than their living selves in terms of durability, example : Third Raikage). They should be equal in stats though, so Kabuto trying to go at hand to hand would hand pretty badly for him, even if he use his long snake to strike Naruto or Minato (ho yeah), Minato could actually use it to mark him, even if he could just vomit himself a new body or something to start off clean.
Ultimately, even without Edo Tensei, Kabuto has the game breaker Manda II, and the father-son sages have no response to his Genjutsu. Naruto and Minato can still win if they manage to, say, hit him with a rasenshuriken (which could at least weaken him enough for them to immediately murder him with rasengan) and he gets cocky, but otherwise, he has too many options, especially because one of the sages isn't quite as skilled as them with senjutsu (looking at you minato)
